Developing a Strategy Now that you have an obstacle in mind, take another few minutes and think about which success strategy might best help you overcome this obstacle. Write this strategy in the box below:

Answer(b) both involve the use of levers;

Sounds propagates through some kind of medium. usually it's air, but it goes just as well through solid objects like walls, windows etc. a soundwave will compress the (air)molecules in front of it, and if this increased density wave hits your ears, you register it as sound. solid objects like walls are a lot denser than air, this means that they will damp a wave, but also carry it easier.

There was no intial y-momentum so the net final y-momentum must also be 0. they can have final velocities in the y-direction